This thread actually points out a couple of interesting things. One, different tubes do make a difference in the sound. This has been carefully explained and demonstrated to me by a colleague and my brother-in-law, both quite knowledgeable in electric guitars. To me, this indicates coloration introduced by the reproducing equipment and is not representative of sound quality except where it is used for the particular sound attributes desired from a musical instrument, like the electric guitar. This brings us to the second point, that different people have different definitions of sound quality. What sound quality means to me can be entirely different from what it means to someone else, and what sounds good to me, might not sound good at all to someone else. The important thing is that YOU enjoy what YOU hear. If that's "tube sound", that's fine with me, but please don't consider me a fool because I don't have your same appreciation for that sound.

Happy Listening,
Bill